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将一种新的、具有超强抽提能力的二硫化碳与N 甲基 2 吡咯烷酮混合溶剂 (CS2 NMP)用于抽提低熟烃源岩有机质 ,并将抽提结果与氯仿抽提、甲醇丙酮氯仿三元混合溶剂抽提进行了比较。研究结果表明 ,CS2 NMP混合溶剂在不破坏有机质化学结构的情况下对低熟烃源岩有机质有很强的抽提能力 ,是氯仿抽出量的 2～ 9倍 ,对部分低熟烃源岩有机质的抽出量达到 70 0mg/g以上。异常高的有机质抽出量表明 ,低熟烃源岩有机质中含有丰富的非共价键缔合结构 ,这对有机质演化有重要意义。 抽出量
A new extraction solvent with high capacity of carbon disulfide and N-methyl 2-pyrrolidone (CS2 NMP) was used to extract organic matter from low-maturity source rocks. The extraction results were compared with chloroform extraction, methanol-acetone-chloroform Ternary mixed solvent extraction was compared. The results show that the CS2 NMP mixed solvent can extract organic matter of low maturity source rocks without any damage to the organic matter structure, which is 2 ~ 9 times of that of chloroform extraction. The organic matter of some low maturity source rocks The amount of extraction reached 70 0mg / g or more. The abnormally high amounts of organic matter extracted indicate that the organic matter in low maturity source rocks is rich in non-covalent association structures, which is of great significance to the evolution of organic matter. Take out the amount